Automatic storm-window regulator



June 21. 1927.

C. A. CHRISTOFFERSON AUTOMATIC STORM WINDOW REGULATOR Filed Feb. 8. 1926 Snow doc Patented June 21, 1927.

UNITED STATES CHRISTIAN A. CHRISTOFFERSON, OF ST. PAUL, MINNESOTA.

AUTOMATIC STORM-WINDOW REGULATOR.

Application filed February 8, 1926. Serial No. 86,850.

This invention relates to an attachment for windows, adapted to automatically effect the opening or closing of a pivoted storm sash upon the opening or closing of a sliding sash of common type. r

In localities where cold weather prevails for a large part of the year, it is common to secure additional protection from the elements by applying storm sash .to the windows of dwellings. Such storm sash are usually pivoted upon the window frames at their upper ends, so as to permit opening at night or at other times when fresh air is desired in a room. The fastening devices heretofore provided for holding such storm sash in predetermined open or closed position have not been entirely satisfactory, because when they hold the sash securely, they are apt to jam or are otherwise difficult to manipulate. This is especially true when, as frequently occurs, such fastening devices become rusted or corroded. To manipulate a storm sash from within doors, the inner,

, sliding sash mustbe open, and heretoforeit i has been necessary for one closing windows of this kind to expose himself to the elements while he manipulates the storm sash fastenings.

It is my object to avoid these disadvantages by providing unusually secure fastening means adapted to automatically open or close a storm sashupon the opening or closing of an inner, sliding sash.

A further object is to provide an automatic regulator of this kind, which is easy to attach and adapted to facilitate the.,removal and replacement of storm sash on windows. Other objects of my invention will appear and be more fully pointed out in the following specification and claims.

The invention will be best understood by reference to the accompanying drawings, in which Fig. 1 is a side elevation of my improved device mounted on a window, the window being shown in vertical section; Fig. 2 is a normally upper end View of the movement plate adapted to be attached to the storm sash; Fig. 3 is a plan View of the bracket, adapted to be connected to the inner sash, showing'the movement plate in horizontal section; Fig. i is a side elevation of the bracket and fragmentary portion of the movement plate and Fig. 5 is a side elevation of an alternate form of movement plate and bracket.

As illustrated, my device is adapted to be mounted upon a window having upper and lower sliding sashes 6 and 7 respectively. A removable storm sash 8 is pivoted upon hinges or hooks 9 at its upper end so as to swing outward from the window at its lower end. Upon each of two vertical, side members 10 of the sash 8, I mount a movement plate 11 having perforated flanges 12 adapted to be secured by screws to the members 10. A pair of guide flanges 13 project laterally from the inner edge of the plate 11 for engagement with rollers on a bracket 14 This bracket 14 is adapted to be secured to the inner sash 7, opposite the plate 11, and has a pair of-branch portions 15, between which the plate 11 extends. A roller 16, journalled between the members 15, is adapted to run upon the inner faces of the flanges 13, and a pair of rollers 17 are arranged to extend into engagement with the outer faces of the flanges 13 respectively.

As clearly shown in Fig. 1, the flanges 13 areso formed on the plate 11 that they extend substantially parallel to the flanges 12 for a short distance near the lower end of the plate and then diverge upward and finally extend substantially parallel to the flanges 12 near the upper end of the plate. Obviously, a bracket 14 may be attached to each vertical side member of the sash 7 to coact with a movement plate 11 placed op-' posite saidbracket.

I prefer to so place the brackets 14 and plates 11 on the sashesthat the brackets hooks 9, and with the lower sash in, wide.

open position the storm sash is held in approximately the open position shown. in Fig. 1 until the sash 7 is lowered to bring the rollers 17 on one sideof the flanges 13' and the roller 16 on the opposite side of said flanges. Now, as the sash 7 is closed, the storm sash is moved to closed position by engagement of the rollers 17 with the outer faces of the flanges 13. When the innersash 7 is in the closed or dotted line position, shown in Fig. 1, the rollers 17 remain in engagement with the flanges 13 to securely hold the storm sash in closed position.

An alternate form of my device is shown in Fig. 5. In this form, the roller 1.6 is eliminated and a second pair of flanges 18, similar to the flanges 13, are provided for engagement with the outer peripheries of the rollers 17 It will be evident that in this alternate form, the cost of theplate 11 is somewhat increased, but the bracket 14 is rendered less expensive, byareason, of the elimination of the roller 16.

The operation of my device will now be evident. It is only necessary to open the inner sash 7 to'efl ect the opening of the storm sash and the lattersash is closed automatically as the sash 7 is closed. By reason of the sinoothfgradually curving form of cam surfaces on theflanges 13, an unusua ally easy and smooth running device is obtained; The operation of attaching the movement plate 11 and brackets l ito the a sliding sash and a pivoted sasln oi' a move ment plate, adapted to be secured to one of said sashes, a' cam arranged on sald'plate to extend obliquely between said sashes, a

bracket adapted to be secured tothe other of said sashes, means on said bracket adapted to operatively' engage sald cam, an end'of 7 said cam formed to, reinovably receive said engaging means when secured to said sashes,

said plate and bracket being adapted to swing said pivoted sash to open position when said sliding sash 1s opened.

2 The combination witha'window having an"inner sliding sash and an outer pivoted sash, of a'lnovement plate adaptedtobe secured to said outer sash, a bracketfadapted to be secured to said inner sash, a flangeon said plate, means on said bracket adapted to operatively engage said flange andto co sashes is simple and may be accomplished.

act therewith in, positively swinging said pivoted sash to open positionwhen-said slid- 111g sash 1S opened and an end on said flange arranged to removably receivesaid engaging,

means while secured to said sashes.

53. The combination with a window having, 7

a vertically sliding sash and a storm sash pivoted at its upper end to swing outward at its lower end from said sliding sash, a movement plate rigidly secured to said storm sash and adapted to project inward there from adjacent: to a vertical member of said sliding sash, a cam surface on said plate formed at its lower end to extend substanstorm sash and adaptedito project inward therefrom adjacent to said sliding sash, a laterally PIOJQClJlHg 'fiange on said plate, a cam surface lorined to diverge obliquely 1nward from said storm'sash, upper and lower end portions of said cam surface normally extendingpa-rallel to said sliding sash, and rollers on said sliding sash adapted toen gage said cam surface and to coact therewith in imparting outward swinging movement to said stormsash when saidinner sash is opened.

'In' testimony whereof, I have hereunw signed rev-name to this specification.-

onn s rian A, on-nisrornnnson. 

